Manukau-based company providing specialist services to the heating, ventilation and air conditioning industry; services: air and waterflow commissioning, AC system surveys, indoor air quality surveys, CAD detailing, ductwork leakage testing etc

Auckland-based group of air-conditioning companies specialising in large-scale contract management, expert design and build service, smaller commercial installations, cleanroom project management systems for high-tech environments etc

Global provider of specialised products and engineering solutions; has an office in Hamilton; product categories: heat transfer, centrifugal separation, fluid handling, and filtration; products: heat exchangers, centrifuges, pumps, valves, etc

Formerly known as Melco New Zealand Ltd; specialises in the marketing and distribution of computer electronics, consumer electronics, professional & commercial electronics, domestic & commercial air-conditioning etc; based in Wellington

Part of the US-based Tyco group; provides refrigeration, heating, ventilation and air-conditioning systems for industrial, commercial and residential properties; also engaged in sheetmetal and fabrication, incineration & heat recovery systems

Part of the US-based Tyco Services Group; manufacturer & supplier of heating & air-conditioning systems; products: air-handling systems, chillers, fan coil units, packaged air-conditioning systems, hot water boilers, calorifers, heat exchangers, etc

Australia-based wholesaler for refrigeration and air-conditioning equipment in Australia; products: air filters, compressors, condensing units, cabinet coolers, refrigerants, heat exchangers, etc; site has contact details across New Zealand

Web site of the Institute of Refrigeration, Heating and Air Conditioning Engineers of New Zealand; IRHACE is a national industry organisation of about 800 members spread over eight regional branches and overseas

Group of engineering firms in the Nelson region that works as a cluster; services include ship design/ building, vessel refits & repair, electrical & electronic system design/ supply/ service, refrigeration & air-conditioning design/ supply/ service

Trade organisation of most of New Zealand's leading manufacturers, retailers and installers of home heating systems; based in Auckland